tools/plugins.py: Remove redundant 'names' variable
tools/plugins.py: Remove redundant 'names' variable

Change-Id: I79f16a4d040893c35b93c31b9520cde102c79080

GerritCodeReview/homepage,GerritCodeReview/homepage,GerritCodeReview/homepage,GerritCodeReview/homepage,GerritCodeReview/homepage